Have you heard the recent news that Corelle (Cornell Capital investing firm), the parent company of Pyrex, bought the Instant Pot company? Many are hoping that with this merging of companies, new products and accessories will be made that are safe for pressure cooking in the Instant Pot. Or buy any imported from France, where they still make PYREX out of borosilicate. If you can get your hands on some older PYREX (labeled with all caps), you’ll have a better dish for resisting thermo shock. It just means that you will have a mess of glass to clean up when you open the lid after pressure cooking. If the glass happens to break while pressure cooking in the Instant Pot, it doesn’t mean that you’re going to blow up your kitchen. It just has higher risk with extreme temperature changes. However, this new soda-lime glass formula is more durable when dropped and doesn’t break as easily. Like placing a hot pan on a cold counter, or pouring water into a hot dish in the oven. Thermo shock occurs when you take a cold/hot item and rapidly change the temperature it’s exposed to. This means that there’s higher risk of shattering due to thermo shock. Soda-lime glass doesn’t fluctuate in expansion and retraction to high/low temperatures. In the 90’s, the company changed to a soda-lime glass formula and also changed their logo from PYREX to pyrex (with all lowercase letters). Any dishes that you buy (used off Ebay or thrift stores) with the older PYREX label are made out of Borosilicate formulated glass. That means that the glass is more stable and when exposed to temperature fluctuations. This glass was made out of a formula called Borosilicate, which is known for it’s thermo shock resistance. The original company started with the brand PYREX (written in all caps). Soda-limeĪs I dug further into research, I discovered this article that shares the history of the Pyrex glass. It wasn’t as safe as I thought if the actual company says it’s a no-no. Pyrex does not recommend pressure cooking with it’s products. I discovered what Pyrex’s statement on using their Pyrex dishes to pressure cook. Ok, phew! I was relieved to know that I was indeed safe using my OVEN SAFE Pyrex dish. As an Amazon Associate I earn from qualifying purchases.) ok if oven safeĪccording to Instant Pot, it’s safe to use anything in the Instant Pot that says it’s OVEN SAFE. So I decided to do some research of my own to find out exactly what the rules are about using Pyrex glass in the Instant Pot for things like pot-in-pot cooking. I WILL ALWAYS do my best to share the most accurate information and would never encourage doing anything that might cause any harm. Recently, a reader asked if Pyrex was safe to use in the Instant Pot since she had heard conflicting information. Using pyrex for pot-in-pot cooking in my Instant Pot has always been successful and I never once worried about it until… I’ve used it to cook frittatas, french toast casseroles, rice, quinoa and desserts. This bowl has been used about a hundred times with meals that I’ve made like our reader favorite Teriyaki Chicken or in recipe testing for my Instant Pot Creations Recipe Ebook. I’ve been happily using my Pyrex glass bowl in my Instant Pot for Pot-in-Pot cooking for quite some time. Can Pyrex go in the Instant Pot? Is Pyrex safe to use when pressure cooking?
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